1201011230220 has 48 divisors (see below), whose sum is σ = 3539822576640. Its totient is φ = 303413363136.

The previous prime is 1201011230207. The next prime is 1201011230323. The reversal of 1201011230220 is 220321101021.

It is a super-2 number, since 2×1201011230220² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1201011230220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526758172 + ... + 526760451.

It is an arithmetic number, because the mean of its divisors is an integer number (73746303680).

Almost surely, 2^{1201011230220} is an apocalyptic number.

1201011230220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201011230220 is an abundant number, since it is smaller than the sum of its proper divisors (2338811346420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201011230220 is a wasteful number, since it uses less digits than its factorization.

1201011230220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053518654 (or 1053518652 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1201011230220 its reverse (220321101021), we get a palindrome (1421332331241).

The spelling of 1201011230220 in words is "one trillion, two hundred one billion, eleven million, two hundred thirty thousand, two hundred twenty".